Typewriting-machine



B. c. STICKNEY.

TYPEWRITING MACHINE.

APPLICAHON FILED SEPT.9, 191s.

Patented Aug. 10, 1926.

2 SHEETS-SHEET I.

INYENTOR= B. c. STICKNEY. TYPEWRITING MACHINE.

APPLICATION FILED SEPT-9,1918.

Patented Aug. 10, 1920.,

2 SHEETS-SHEET 2.

, printing line, in

v at the top of the sheet optional. sheet may be of a trifle greater of the plies of web.

pairs! STATES PATENT @FFMIE.

IB'URNHAM C. STICKNEY, OF

ELIZABETH, NEW JERSEY, ASSIGNOR TYPEWRITER COMPANY, OF NEW YORK, N." Y., A CORPORATION TO UNDERWOOD OF DELAWARE.

TYPEWRITING-MACHIN E.

Patented Aug. 10, 1920.

Applicatiqn filed September 9, 1918. Serial No. 253,241.

To all whom it may concern:

Be it known that I, BURNHAM C. STrOK- NEY, a citizen of the United States, residlng in Elizabeth, in the county of Union and State of New Jersey, have invented certaln new and useful Improvements in Typewriting-Machines, of which the following is a specification.

This invention relates to the class of writing machines disclosed in the patent to Wernery & Smith No. 1,132,055, in which superposed plies of web are led into the machine to be typed, and in which the platen can be displaced to permit the web to be straightcued out, thereby freeing the carbon sheets which are interposed between the plies of web, so that the carbon sheets may be drawn back preparatory to typing fresh portions In my application No. 240,130 is disclosed a device for automatically feeding a record sheet to produce a blank space between groups of entries upon a condensed record sheet, which underlies the plies of web impressions of all the items that are entered upon successive forms of the web. The web is usually printed with a succession of forms upon which the items are typed. The typing may not occupy many lines on which is usually torn off as soon as it is typed. Upon the record sheet all of the typing for the successive forms is written compactly w'thout extra spacing between entries, exce t for the spacing produced by the mechanism disclosed in said application, -in which the condensed record sheet passes between special feed rolls, which during the typing oueration are idle, but which The present application relates to improved and simplified means for effecting an automatic advance of the condensed record sheet.

In accordance with the present improvements, the special rolls for feeding the condensed record sheet are placed near the order to avoid leaving an excessive blank area between the top edge and the first typed line. Preferably the rolls are placed a little below the printing line, thus leaving the extent of blank space The record width than and receives carbon the form,

the work webs, and the special feeding rolls may engage the side margins of the record sheet, the web passing freely through the space left between the special rolls. Preferably .at each end of the platen, which may be just long enough to accommodate the work web, there is placed loosely upon the platen axle a feed roll which is of about the same diameter as the platen. For each of these rolls there is provided a pawl-andratchet mechanism which will operate automatically at the platen-displacing operation, to rotate the rolls simultaneously; and a spring detent is provided for each ratchet, to secure uniformity in the extent of the simultaneous movements of the rolls. Each of theserolls has a companion roll, which is normally cast off, so as not to be in use at the typing operation; but at some point in the platen-displacing operation these companion rolls are automatically restored to cooperation with the ratchet-driven rolls; The ratchets are illustrated as being operated by links which come into play by reason of the upward swinging or displacement of the platen, and preferably the record sheet is fed thereby at the upward movement of the platen. The record sheet remains under control until the conclusion of the downward movement of the platen, which restores it to typing position; at which time both the record sheet and the plies of web come under controlof the usual rolls which run upon the bottom of the platen, so that all the sheets may be line.- fed together during the typing operation.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a perspective view of an Underwood front-strike writing machine embodying the present improvements.

ig. 2 is a sectional elevation taken'from front to' rear and showing the parts in and also the concomitant restoration of the front or companion rolls which takepart in feedingthe record sheet. v

Fig. 4- illustrates the platen at a point in its upward movement to permit the i the record sheet begins.

i Fig. 5 shows the displacement of the platen and the forward feeding of the record sheet both completed.

- which may be the position at -Fig. 6 is a front view of the left-hand end of the platen and adjacent parts in writing position.

The plies of web 10 are led into the machine and pass forwardly along a supplemental carriage 11, to the main carriage 12. Between the plies are sheets of carbon 13, attachedat their rear ends to a carrier 14, which advances step by step with the work during the usual line-feeding operations,but ushed backwardly from.time to time inv or er to bring-the carbons into use with fresh portions of the web. The plies of web with interposed carbonspass downwardly over a bar 15 and run forwardly under and up around a revoluble platen riage12. Feed rolls 1 the bottom of the platen.

When it is desired to straighten out the sheets, the platen is swung upward from Fig. 2 to the position at Fig. 5, being for this purpose mounted upon a swing-frame 19, which is hinged at 20 to the carriage. The web being now straight ened out, the carbon-carriermay be caused to shift the carbons backwardly in the wellknown manner. v

The length of the platen is about equal to the width of the work web, but the record sheet 21 is made wider, to be engageable by each of two driving rolls 22 mounted loosely on hubs 16 in juxtaposition to the ends of the platen 16. During the ordinary linefeeding of the web and record sheet, these rolls 22 remain idle; but at the platen-displacing operation they cooperate with comand 18 run upon Y panion rolls 24 to feed the record sheet 21 either alone or with its overlyingcarbon 25; and in the latter case the carbon 25 need not be attached to the carbon-carrier 14.

A spring 26 for each companion roll 24 tends normally to press it against the driving roll 22; but for the purpose of restraining this tendency and normally keeping the two rolls out of use, each roll is mounted upon an arm 27, pivoted at 27, which is provided with a rearwardly and upwardly extending finger 28 to rest against an abutment or stop 29. It is desirable to release these rolls 24 from said stops 29, and thereby restore the rolls 24 to working positions, before the platen begins to rise, so as to maintain control over the record sheet 21; and for this purpose said stop 29 is formed as part of a hook-arm 30, the hook 31 of which normally catches over a pin or roller 32 upon the frame 19, to hold the platen down. This hook-arm has a finger-piece 33, by which the 16, which is supported by said cararm may be pressed back against a spring 33, to release the platen for its upwar swin and restore the companion rolls 24 to eiflactive positions, as at Fig. 3.

Upon each of the driving rolls is provided a ratchet wheel 34, with which engagesa pawl 35, pivoted at 36 upon an arm 7 37 which swings freely about the platen axle 23. The power to drive this arm and pawl may be derived from the upward displacing movement of the platen frame 19, so that the lifting of the platen 16 will automatically feed forward the record sheet 21. For

this purpose each pawl 35 or pawl-arm 37 is shackled or connected to an anchorage pin 38 provided upon the carriage 12. The connection is in the form of a shackle or loose link 39 pivoted at its forward end at 36 to end of the slot 40, so that the link 39 cannot yield, and hence the pawl 35 and arm 37 are held against further'bodily swinging about the platen-frame hin e 20. The movement of the platen frame a out said hinge 20 continues, however, until the position seen at Fig. 5 is reached; and during this concluding portion of the stroke the unyieldin pawl 35 forces the ratchet wheel 34 and rol 22 to turn upon the platen axle 23, thus advancing the record sheet 21. The extent of the advance may be determined by the length of the slot 40, or the position of the pin 38; and it may be equal to two or three of the teeth of the ratchet 34. These teeth correspond in number to the teeth of the usual line-space ratchet wheel 42, and each ratchet Wheel 34 is provided with a spring detent or check 43, which insures that the turning movement of roll 22 at one end of the platen shall be the same as that of the corresponding roll 22 at the other end of the platen, thus conducing to even feeding of the record sheet. The arrangement also insures that the extent of the feeding movement of the record sheet shall be a multiple of the ordinary drawn by the spring 26 during this movement.- In order to prevent the spring 26 from lifting the pawl in Fig. 2 position, and from 'misplacing the pawl during the bringing of the platen back to writing position, there may be provided a stop 44 fast on the journal 45 in the frame 19 on which the lhten axle is journaled. As illustrated in igs. 3 and 4, after roll 24 has been brought into contact with the di 'iving roll 22, as a result of the actuation of fingerpiece 33, the parts carried by the swin frame 19 will remain fixed relatively to said swing frame 19 until the arm or pawl-carrier 37 is actuated by link 39 during the movement of the lifting frame from the position shown in Fig. 4 to that shown in Fig. 5. As illustrated in Figs. 4 and 5, the actuation of arm 37 by'link 39 results in extending sprin 26 and thereby increasing the pressure 0 roll 24 on the driving roll 22, thus tending to hold the record-sheet more firmly against the driving roll 22 during the actuation of the latter. While a single pawl and link have been described, it will be understood that the devices are duplicated at the ends of the platen. As soon as the platen is fully depressed, the hook-arm 30 is swung forward either manually or bymeans of the spring 33, and the abutment 29 thereon engages the finger 28 and disengages the roll at'each end of the platen, so that the line-feeding movements of the record sheet may be effected by the platen and the usual bottom rolls 17, 18.

o imit the upward and-forward movement of the platen, the usual bumpers 46 are provided on the parriage on which the frame 19 is adapted to rest in Fig. 5 position.

The improvement in feeding the record sheet may be used in other types of machines, and in other connections.

Variations may be resorted to within thescope' of the invention, and portions of the imfirovements may be used without others. aving thus described my invention, I claim: I v

1. The combination with a carriage and a revoluble platen therein, of a device whereby the platen may be lifted relatively to the carriage, feed-rolls mounted on said carriage for holding work-sheets to the platen while the latter is in depressed position, an axle for the platen,' a separately-revoluble .portion journaled, on the platen-axle, a special feed-roll carried by said lifting device to cooperate with said separately-revoluble portlon adapted to hold a work-sheet thereagainst, and means whereby said special feed-roll will be maintained in ineffective position relative to said separately-revoluble portion While the platen is in depressed position on said carriage. p

2. The combination with a carriage and a revoluble platen therein, of a device whereby the platen may be lifted relatively to the 1ng said platen in writing ,platen by said carriage, feedrolls for holding work-sheets to the platen, an axle for the platen, a separately revoluble portion journaled on the platen axle, and a special feed roll for said separately revoluble portion adapted to hold a work-sheet thereagainst independently of the other worksheets, said last-named feed roll normally ineffective and adapted to be made effective automatically before the platen is lifted.

3. The combination with a carriage and a revoluble platen therein, of a device where by the platen ma be lifted relativel to the carriage, feed ro ls for'holdingwor -sheets to the platen, an axle for the platen, a separately revoluble portion journaled on the platen axle, a special feed roll for said se arately revoluble portion adapted to hold a work-sheet thereagainst independently of the other Work-sheets, a catch normally holdposition in the carriage, said special feed roll being normally ineffective, and means for making said last-named feed roll elfective by said catch ineffective.

4. The combination with a carriage and a revoluble platen therein, of a device whereby the platen ma be lifted relatively to the carriage, feed role for holding work-sheets to the platen, an axle for arately revoluble portion platen axle, a special feed arately revoluble portion adapted to hold a Work-sheet thereagainst independently of the other work-sheets, a catch normally holding said platen in writing carriage, said special feed roll being normally ineffective, means for making said special feed roll effective by making said catch ineffective, and a device for rotating said se arately revoluble portion by movement 0 the platen relatively to the carriage.

5. In atypewriting machine, the combinationwith a carriage including feed rolls, of a platen about which a work-sheet 1s the platen, a sepjournaled on the roll for said se adapted to be passed to be held against the feed rolls, a swing frame in whtich said platen is journaled to enable it :to

axle or said platen, a separately revoluble e swung to and from said feed rolls, an

portion adjacent each end of said platen and ournaled on said axle, a special normally mefi'ective feed roll for each of said portions adapted to hold a work-sheet against said portions independently of the first-named feed rolls, a detent for each separately revoluble portion adapted to hold a wor -sheet alined, and means for making said special feed rolls effective by moving the platen relatively to its carriage.

6. In a typewriting machine, the combination with a carriage including feed rolls, of a platen about which a worksheet is adapted to be passed to be held against the laten by the feed rolls, a swing frame in w ich said position with the from said mounting to the platen is journaled to enable it to be swung to and from said feed rolls, platen, a separately revoluble portion adjacent each end of said platen and journaled on the axle, a special normally ineffective feed roll'for each of said portions adapted to hold a work-sheet against said portions independently of the first-named feed rolls, a detent for each separately revoluble portion adapted to hold a work-sheet alined, means for making said last-named feed rolls effective by moving the platen and its carriage, and means for rotating said portions by said movement of'the platen.

7 In a typewriting machine, the combination with a traveling carriage and a platen therein including an axle, of a swing frame in which said axle is journaled, a separately revoluble portion adjacent to the platen and journaled on the axle, a feed roll for holding a work-sheet against said portion, and a detent mounted in said swing frame adapted to hold said portion against turning.

8. In a typewriting machine, the combination with a traveling carriage and a platen therein including an axle, of a swing frame in which said axle is journaled, a separately revoluble portion adjacent to the platen and journaled on the axle, a normally ineffective feed roll for said portion, a detent mounted in said swing frame for holding said-portion against revolving, and means for revolving said ortion by swinging said frame.

9. n a typewriting machine, the combination with a traveling carriage and a platen therein including an'axle, of a swing frame in which saidfplaten is journaled on the axle, a separately revoluble portion adjacent to the'platen and journaled on the axle, a normally, ineffective feed roll for said portion,

a detent mounted in said swing frame for holding said portion against revolving, a ratchet wheel for said detent, a pawl, a mounting for said pawl journaled on the platen axle, so that the pawl may engage said ratchet wheel, and a link extending carriage frame and adapted to drive the pawl around the platen axle to rotate the portion.

10. In a typewriting machine, the combination with a traveling carriage and-a platen therein including an axle, of a swing .frame in which said platen is journaled on the axle, a separately revoluble portion adjacent to the platen and journaled on the axle, a normally ineffective feed roll for said portion, a detent mounted in said swing frame for holding said portion against revolving, a ratchet wheel for said detent, a pawl, a mounting for said pawl journaled on the platen axle, gage said ratchet wheel, and a link extending from said mounting to the carriage frame and adapted to drive the pawl around the platen axle to rotate the portion to adan axle for said naled in said swing frame,

-ing it to drive the portion by the swinging so that the pawlmay en- Vance it, said link constituting part of a; lost-motion connection between the carriage and the platen to enable the advance of the portion to be smallrelative to the movement of the Iplaten.

. 11. n a typewriting maehine,.in combination, a revoluble platen, feed-rolls cooperating therewith to feed a plurality of work-sheets, including a record-sheet, the margins of which extend beyond the ends of said platen, independently-revoluble members, forming extensions of said platen, to receive the margins of said record-sheet, auxiliary feed-rolls to cooperate with said members, means whereby the platen and the corresponding feed-rolls may be separated, to release the work, and means, actuated by said separating means, for actuating said independently revoluble members, and thereby advancing the record-sheet.

12. The combination with a carriage and a swing frame therein, of a platen jourfeed rolls for holding work-sheets to the platen, an axle by which the platen is mounted in said swing frame, a separately revoluble portion journaled on the platen axle, means for holding a work-sheet against said separately revoluble portion, a pawl adapted to drive said separately revoluble portion upon the swinging of said frame, and means for limiting the throw of said pawl.

13. The combination with a carriage and a swing frame therein, of-a platen journaled in said swing frame, feed rolls for holding work-sheets to the platen, an axle by which the platen is mounted in said swing frame, a Y separately revoluble portion journaled' on the platen axle, means for holding a worksheet against said separately revoluble portion, a pawl adapted to drive said separately revoluble portion upon the swinging of said frame, a spring normally holding said pawl, a stop for the pawl upon the swing frame, and a lost-motion connection between the pawl and the carriage to cause the pawl to drive the portion by movement of the swing frame.

14. In a typewriting machine, bination with a traveling carriageand a platen therein including an axle, of a swing frame in which said axle is journaled, a separately revoluble portion adjacent the platen and journaled on the axle, a feed roll for holding a. work-sheet against said portion, a driving pawl for said portion,- a member journaled on the platen axle carrying said pawl, and a lost-motion connection between the carriage and the pawl .for causof the frame.

15. In a typewriting machine, the combination with a traveling carriage and a platen therein, of a swing frame, an axle for said platen journaled in said frame, line- 130 the combination, 80

. sions thereof,

- revoluble portion adapted to space mechanism for turning said axle to urn said platen, a separately revoluble portion on said platenaxle, devices cooperating with said platen to cause work-sheets passed around the platen to be fed together when the swing frame is in its normal position, and devices cooperating with said separately independently drive certain of said work-sheets relatively to the others when the swing frame is swung.

16. In a typewriting machine, the combination with i of a swmg frame,- for said platen journaled in said frame, a. separately revoluble portion on said platen axle, devices cooperating with said platen to cause work-sheets passed around the platen to be fed together when the swing frame is in its normal position,normally ineffective feed rolls adapted .to hold certain of said work-sheets against said portion, driving mechanism for said portion operated by the swinging of the swing frame, and means for first making said feed rolls effective and then revolving said portion by the swinging of the swing frame. I

In a

a revoluble platen, a platen-axle, separately-revoluble sections mounted at the ends of said platen, and-constituting exten- .a platen-lifting frame in which said axle is mounted, feed-rolls with which the platen cooperates when in depressed position, auxiliary feed-rolls to cooperate with said sections, carried on said lifting frame, said auxiliary feed-rolls being normally spaced from said sections, means to cause said auxiliary rolls to engage said sections before the platen is lifted,

and means effective at the end of the movement of the lifting frame to actuate said sections, and concomitantly increase the pressure of said auxiliary rolls thereon.

18. In a typewriting machine, in combination, a revoluble platen, separately-revoluble extensions of said platen to receive the margins of a record-sheet extending beyond the ends of said platen, feed-rolls to coiiperate with said platen, to feed worksheets, including said record-sheet, auxiliary feed-rolls to cooperate with said extensions, means for separating said platen and the feed-rolls associated therewith, latching means to prevent actuation of said separating means, means whereby release of said latching means will cause said auxiliary rolls to be pressed against said extensions, and means effective at the end of the separating action to effect an increased pressure of said auxiliary rolls on said extensions,

. with each of said typewriting machine, in com revoluble sections,

and constituting extensions thereof, means and concomitantly to actuate said extensions to advance the record-sheet with reference to the rest of the work-sheets.

19. In a typewriting machine, in combination,.a revoluble platen, independently revoluble members, forming extensions of said platen, fee -rolls to coiiperate with said platen, a lifting frame in which said platen is mounted for movement away from said feed-rolls to release the work, auxiliary rolls to cooperate with said members, mounted on said lifting frame, a ratchet-wheel connected members, a pawl to cooperate with each of said ratchets, a carrier for each of said pawls, a stop to limit the return movement of said pawl-carrier, and means, including a spring, connecting each of said pawl-carriers with the corresponding auxiliary roll, whereby said auxiliary roll will be urged toward the adjacent revoluble member, and the pawl-carrier toward the stop, actuation of said pawl-carrier tending to increase the pressure of said auxiliary rolls on said members.

20. In a typewriting machine, in combination, a platen, a frame in which said platen is revolubly mounted, independentlycoaxial .with said platen,

for actuating said sections, including a ratchet-wheel connected with each of said sections, a pawl to cooperate with each of said ratchet-wheels, and a carrier for each of said pawls mounted to swing about the axis of said platen, an auxiliary feed-roll to cooperate with each of said sections, a stop to limit the return movement of each of said pawl-carriers, and means, including a spring for urging each of said auxiliary feed-rolls toward the adjacent section, and the corresponding pawl-carrier against its stop.

21. In a typewriting machine, in combination, a revoluble platen, independentlyrevoluble members coaxial therewith, and forming extensions thereof, feed-rolls to cooperate with said platen, auxiliary feed-rolls to cooperate with said members, means for normally maintaining said platen and the corresponding feed-rolls in cooperative relation, means whereby said platen and the corresponding feed-rolls may be separated, means normally maintaining said auxiliary feed-rolls spaced from said members. and means whereby said auxiliary feed-rolls will be rendered effective by actuation of said separating means.

BURN HAM C. STICKNEY.

Witnesses:

SAMUEL W. EMERY, JACOB BROWN. 

